Important, high-quality sites receive a higher PageRank, which Google remembers each time it conducts a search. Of course, important pages mean nothing to you if they don't match your query. So, Google combines PageRank with sophisticated text-matching techniques to find pages that are both important and relevant to your search. Google goes far beyond the number of times a term appears on a page and examines all aspects of the page's content (and the content of the pages linking to it) to determine if it's a good match for your query.

So I have a fairly radical proposal for you.
In my opinion, its time to stop trying to get a free ride in the reciprocal linking game. It's time to start looking for quality sites that will post your linking ad... and be prepared to pay for it.
Yes, I said pay for it.
Because at the end of the day, it's far better for your business to have a few links on important, relevant web pages than it is to have hundreds of irrelevant, low traffic, low PageRank sites linking to you.
Why? Because having your ad appear on a site that Google considers important and relevant can not only improve your rankings but can also attract targeted traffic that converts into leads and sales. (This assumes that all other search engine optimization strategies are in place and working, i.e.: spider-friendly HTML code, strong content, and proper registration with the right search engines and directories.)

Верно - я так делаю
И чем больше страниц, тем сложнее найти эту единственную страницу.

смотря для кого, я за пару минут одной тулзой найду эту страницу

Ну я то знаю как с помощью одного запроса вычислить
Рассказал бы, но конкуренция тут таки да

По результатам последнего пересчета ПР я получил то, что хотел . Так что теперь я знаю(или по крайней мере думаю, что знаю), как поднять ПР от 5 и выше...